#include "Derive2.h"
#include <iostream>
using namespace std;
Derive2::Derive2()
{
}

Derive2::~Derive2()
{
}

void Derive2::f2() 
{
  cout << "Derive2::f2()" << endl;
}

void Derive2::f3() 
{
  cout << "Derive2::f3()" << endl;
}

void Derive2::f4() 
{
  cout << "Derive2::f4()" << endl;
}
